The trial of a former prison chief with the Khmer Rouge movement resumed inside a packed Cambodian courtroom Monday, with prosecutors painting a grim picture of inmates who were electrocuted, whipped and beaten to death.

Kaing Guek Eav, a former math teacher and a born-again Christian, displayed no emotion as the U.N.-backed tribunal accused him not just of overseeing the torture and killing of more than 15,000 men, women and children three decades ago — but of actively taking part in some of them.

The trial of the 66-year-old man, better known as Duch, resumed Monday just outside the Cambodian capital, Phnom Penh.

Fighting between Somali police and Islamist gunmen killed eight people in Mogadishu on Monday, witnesses said, raising the stakes as a new president tries to bring stability to the failed Horn of Africa state.

Clashes between hardline Islamists from the al Shabaab group and a rival militia also killed six people in the central Bay region, but officials from all factions declined to comment.

Residents said the latest battles in the capital broke out on the road linking the strategic K4 junction with the hilltop presidential palace, Villa Somalia.

More than one million people in Darfur are at risk of losing food, water and shelter in coming months, following the expulsion of international aid groups by Sudan’s government, the United Nations’ chief humanitarian coordinator said Tuesday.

The statement by coordinator John Holmes comes after a joint U.N.-Sudanese assessment of the situation.

The information was gathered from March 11-18 in hopes of stemming further troubles in Darfur after Sudan’s government expelled 13 international relief organizations from the wartorn region.

The announcement came on the same day that President Omar al-Bashir, now an indicted war criminal, ignored the threat of arrest by traveling abroad to Eritrea. Also Tuesday, a Sudanese staffer working for a Canadian relief group was shot dead in Darfur.

A Sudanese aid worker was shot dead in front of his family on Monday night in the war-ravaged region of Darfur, according to aid officials.

Mark Simmons, Sudan country director of Fellowship for African Relief, an aid and development agency that focuses on Sudan, said the aid worker may have been killed for refusing to hand over his satellite phone.